A 41-year-old employee with the Water and Sewerage Authority (WASA) was gunned down at his George Street, Ste Madeleine home on Saturday.
Around 6.30 pm, Dario Sandiford, was reversing his vehicle into his yard when he was approached by a person wearing a dark hoodie.
The suspect fired several shots at Sandiford while he seated in his car before fleeing the scene.
Investigations are underway.